This mixed-reality headset redefines the genre.
If realized using solar energy or other renewable energy, water splitting could be a promising way of sustainably producing hydrogen (H2) on a large-scale. Most photoelectrochemical water splitting systems proposed so far, however, have been found to be either inefficient, unstable, or difficult to implement on a large-scale.
Researchers at Ulsan National Institute of Science and Technology (UNIST) recently set out to develop a scalable and efficient photoelectrochemical (PEC) system to produce green hydrogen. Their proposed system, outlined in Nature Energy, is based on an innovative formamidinium lead triiodide (FAPbI3) perovskite-based photoanode, encapsulated by an Ni foil/NiFeOOH electrocatalyst.
“Our group has thoroughly studied the challenges associated with practical solar hydrogen production,” Jae Sung Lee, Professor of Energy & Chemical Engineering at UNIST and co-author of the paper, told Tech Xplore. “As summarized in our most recent review paper, minimum 10% of solar-to-hydrogen (STH) efficiency is required to develop viable practical PEC system, for which selecting an efficient material is the first criteria.”
Researchers at the University of Toronto’s Donnelly Center for Cellular and Biomolecular Research have found nearly one million new exons—stretches of DNA that are expressed in mature RNA—in the human genome.
The findings were published in the journal Genome Research.
There are around 20,000 protein-coding genes in humans that contain approximately 180,000 known internal exons. These protein-coding regions account for only one percent of the entire human genome. The vast majority of what remains is a mystery—aptly referred to as the “dark genome.”
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Is the Universe infinite?
Posted in space
As far as we can tell, there’s no limit to how far it goes on; only a limit to how far we can see. Could the Universe truly be infinite?
From ‘inverse vaccines’ to repurposed cancer therapies, several potential cures for autoimmune diseases are showing serious promise.
Title: Metacognition: ideas and insights from neuro-and educational sciences See… https://www.nature.com/articles/s41539-021-00089-5 Abstract: Metacognition comprises both the ability to be aware of one’s cognitive processes (metacognitive knowledge) and to regulate them (metacognitive control)…
Fleur, D.S., Bredeweg, B. & van den Bos, W. Metacognition: ideas and insights from neuro-and educational sciences. npj Sci. Learn. 6, 13 (2021). https://doi.org/10.1038/s41539-021-00089-5
Though we’re still a ways off from generating usable energy this way, the result shows promise for the field.